From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS6130 216.105.38.0/24 X-Spam-Status: No, score=-3.6 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, SPF_HELO_PASS,SPF_PASS,T_DKIM_INVALID shortcircuit=no autolearn=ham autolearn_force=no version=3.4.1 Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 3F2DD1F85A for ; Tue, 10 Jul 2018 18:44:44 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1fcxcu-0004V8-Dg; Tue, 10 Jul 2018 18:44:40 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1fcxcs-0004V1-IU for sox-users@lists.sourceforge.net; Tue, 10 Jul 2018 18:44:38 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:MIME-Version :Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=3DnAQ0MziTs9oZtqCKfa4QZbInKNRz8Nsv1Bm0a+ix0=; b=g1hvLTCb9CSV/Durmj7b+Saxbr BS6GjFkTzwHLjgs+vga1eNl/c0KBlyXr94H/graJs3SDMMHbFY8bxGBoRt2ob7Zj2Gg4NyNIlzfpp qUBkoD79C0cB6mn0hNtapBFsQVakCDQt0Z7wW7YpRoedrLsIEAmMAs5OKEKFOhldklUA=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID: In-Reply-To:Date:References:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=3DnAQ0MziTs9oZtqCKfa4QZbInKNRz8Nsv1Bm0a+ix0=; b=CtOCYW2TEcUDvba7mAF7oSpbIO G+j3pDspcga6gykkGhN25VtJCD2HG81s7e57jMaQRlUg6LcuieDlkYGyf9oix/toZUZ4D820H3m3+ VhF2lRUQ9BYYcfLF0BZcVlp5vnR43jCSTPEZlidKl3v+H4JGx4eeyVr3zcsrkAS+uPNo=; Received: from unicorn.mansr.com ([81.2.72.234]) by sfi-mx-4.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) id 1fcxco-0009jJ-CI for sox-users@lists.sourceforge.net; Tue, 10 Jul 2018 18:44:38 +0000 Received: by unicorn.mansr.com (Postfix, from userid 51770) id 95B721538E; Tue, 10 Jul 2018 19:44:20 +0100 (BST) From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= To: "Peter P." References: <20180710180855.gxzwypesnv2zhehc@fastmail.com> Date: Tue, 10 Jul 2018 19:44:20 +0100 In-Reply-To: <20180710180855.gxzwypesnv2zhehc@fastmail.com> (Peter P.'s message of "Tue, 10 Jul 2018 20:08:55 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) MIME-Version: 1.0 X-Headers-End: 1fcxco-0009jJ-CI Subject: Re: play WARN alsa: under-run X-BeenThere: sox-users@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sox-users@lists.sourceforge.net Cc: sox-users@lists.sourceforge.net Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: sox-users-bounces@lists.sourceforge.net "Peter P." writes: > Hi, > > I am trying to play back a wav file on a raspberry pi 1 with play from > SoX v14.4.2. I do get dropouts with the following message: > > play WARN alsa: under-run > > I tried different values of --buffer but am not sure if this is > respected by the play command, or if it is just about sox's processing > blocks. > > Does anyone know how I can adjust alsa buffer sizes for the play > command? Furthermore, does the play command support jackd? The ALSA buffer size tracks the --buffer argument within the constraints of the driver. Since the RPi 1 is a rather low-performing system, it is quite possible that it is simply too slow to keep up regardless of buffer size. -- = M=E5ns Rullg=E5rd ---------------------------------------------------------------------------= --- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Sox-users mailing list Sox-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sox-users